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Note 11 - Equity Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Feb. 28, 2025	Mar. 31, 2025	Mar. 31, 2024
Sky Incentive Units [Member] \| Sky Harbour LLC and Subsidiaries (Sky) [Member]
Share-Based Payment Arrangement, Expense		$ 45	$ 45
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 100
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		2 months 12 days
The 2022 Incentive Award Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)	686,647
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)	$ 11.07
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)	$ 6.33
The 2022 Incentive Award Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Expense		$ 1,000	900
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		1,132,444
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share)		$ 9.75
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 10,800
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		3 years
The 2022 Incentive Award Plan [Member] \| Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	437,930
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)	$ 11.15
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
The 2022 Incentive Award Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
Share-Based Payment Arrangement, Expense		$ 200	$ 100
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 7,200
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		8 years 6 months
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)	10 years